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United States · Alaska

M2.3 Earthquake near Matanuska-Susitna Borough, Alaska (United States)

UTC time: 2026-08-20 01:33:11 UTC Local time: —
Magnitude
M2.3
Depth
16.5 km
Source
USGS

Alaska · Matanuska-Susitna Borough

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About this earthquake

A magnitude M2.3 earthquake was recorded near Matanuska-Susitna Borough, Alaska (United States) on August 20, 2026 at 01:33 UTC. The hypocenter lay relatively close to the surface at around 17 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 186 earthquakes, the strongest at M4.1.

Depth profile

Depth profile Depth: 16.5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 16.5 km
Shallow
16.5 km
16.5 km — close to the regional average (15.2 km)
Regional average: 15.2 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Volcanoes nearby

  • Hayes
    Distance: 148 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Spurr
    Distance: 152 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Redoubt
    Distance: 227 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Buzzard Creek
    Distance: 251 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Iliamna
    Distance: 277 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Wrangell
    Distance: 295 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Wasilla Creek AirparkUnited States · 05AK
    33.1 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-11-15

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

Alaska

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 2.0 · 4,148 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

Historic earthquake map · United States

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Country statistics · United States

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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